Day cab marker lamp



FIG. 1 is a perspective view of a day cab marker lamp according to our new design;

FIG. 2 is a front elevational view of the day cab marker lamp of FIG. 1;

FIG. 3 is a rear elevational view of the day cab marker lamp of FIG. 1;

FIG. 4 is a top plan view of the day cab marker lamp of FIG. 1;

FIG. 5 is a right side elevational view of the day cab marker lamp of FIG. 1; and,

FIG. 6 is a left side elevational view of the day cab marker lamp of FIG. 1.

The subject matter shown in phantom lines is hereby disclaimed and forms no part of the claimed invention. 

CLAIM The ornamental design for a day cab marker lamp, as shown and described. 